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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2455 | mario79 | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
2288 | clevermous | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; ;; |
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7 | ;; System service for filesystem call ;; |
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8 | ;; (C) 2004 Ville Turjanmaa, License: GPL ;; |
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9 | ;; 29.04.2006 Elimination of hangup after the ;; |
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10 | ;; expiration hd_wait_timeout (for LBA) - Mario79 ;; |
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11 | ;; 15.01.2005 get file size/attr/date, ;; |
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12 | ;; file_append (only for hd) - ATV ;; |
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13 | ;; 23.11.2004 test if hd/partition is set - ATV ;; |
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14 | ;; 18.11.2004 get_disk_info and more error codes - ATV ;; |
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15 | ;; 08.11.2004 expand_pathz and rename (only for hd) - ATV ;; |
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16 | ;; 20.10.2004 Makedir/Removedir (only for hd) - ATV ;; |
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17 | ;; ;; |
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18 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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19 | |||
20 | $Revision: 3927 $ |
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21 | |||
22 | |||
23 | iglobal |
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3309 | esevece | 24 | |
25 | if lang eq sp |
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26 | include 'fs/fs-sp.inc' |
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3927 | kaitz | 27 | else if lang eq et |
28 | include 'fs/fs-et.inc' |
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3309 | esevece | 29 | else |
2288 | clevermous | 30 | dir0: |
31 | db 'HARDDISK ' |
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32 | db 'RAMDISK ' |
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33 | db 'FLOPPYDISK ' |
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34 | db 0 |
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35 | |||
36 | dir1: |
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37 | db 'FIRST ' |
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38 | db 'SECOND ' |
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39 | db 'THIRD ' |
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40 | db 'FOURTH ' |
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41 | db 0 |
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3309 | esevece | 42 | end if |
2288 | clevermous | 43 | |
44 | not_select_IDE db 0 |
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45 | |||
46 | hd_address_table: |
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47 | dd 0x1f0,0x00,0x1f0,0x10 |
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48 | dd 0x170,0x00,0x170,0x10 |
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49 | endg |
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50 | |||
51 | file_system: |
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52 | |||
53 | ; IN: |
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54 | ; |
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55 | ; eax = 0 ; read file /RamDisk/First 6 |
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56 | ; eax = 8 ; lba read |
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57 | ; eax = 15 ; get_disk_info |
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58 | ; |
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59 | ; OUT: |
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60 | ; |
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61 | ; eax = 0 : read ok |
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62 | ; eax = 1 : no hd base and/or partition defined |
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63 | ; eax = 2 : function is unsupported for this FS |
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64 | ; eax = 3 : unknown FS |
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65 | ; eax = 4 : partition not defined at hd |
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66 | ; eax = 5 : file not found |
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67 | ; eax = 6 : end of file |
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68 | ; eax = 7 : memory pointer not in application area |
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69 | ; eax = 8 : disk full |
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70 | ; eax = 9 : fat table corrupted |
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71 | ; eax = 10 : access denied |
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72 | ; eax = 11 : disk error |
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73 | ; |
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74 | ; ebx = size |
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75 | |||
76 | ; \begin{diamond}[18.03.2006] |
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77 | ; for subfunction 16 (start application) error codes must be negative |
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78 | ; because positive values are valid PIDs |
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79 | ; so possible return values are: |
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80 | ; eax > 0 : process created, eax=PID |
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81 | |||
82 | ; -0x10 <= eax < 0 : -eax is filesystem error code: |
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83 | ; eax = -1 = 0xFFFFFFFF : no hd base and/or partition defined |
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84 | ; eax = -3 = 0xFFFFFFFD : unknown FS |
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85 | ; eax = -5 = 0xFFFFFFFB : file not found |
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86 | ; eax = -6 = 0xFFFFFFFA : unexpected end of file (probably not executable file) |
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87 | ; eax = -9 = 0xFFFFFFF7 : fat table corrupted |
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88 | ; eax = -10 = 0xFFFFFFF6 : access denied |
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89 | |||
90 | ; -0x20 <= eax < -0x10: eax is process creation error code: |
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91 | ; eax = -0x20 = 0xFFFFFFE0 : too many processes |
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92 | ; eax = -0x1F = 0xFFFFFFE1 : not Menuet/Kolibri executable |
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93 | ; eax = -0x1E = 0xFFFFFFE2 : no memory |
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94 | |||
95 | ; ebx is not changed |
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96 | |||
97 | ; \end{diamond}[18.03.2006] |
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98 | |||
99 | ; Extract parameters |
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100 | ; add eax, std_application_base_address ; abs start of info block |
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101 | |||
102 | cmp dword [eax+0], 15; GET_DISK_INFO |
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103 | je fs_info |
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104 | |||
105 | cmp dword [CURRENT_TASK], 1; no memory checks for kernel requests |
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106 | jz no_checks_for_kernel |
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107 | mov edx, eax |
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108 | cmp dword [eax+0], 1 |
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109 | jnz .usual_check |
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110 | mov ebx, [eax+12] |
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111 | ; add ebx,std_application_base_address |
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112 | mov ecx, [eax+8] |
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113 | call check_region |
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114 | test eax, eax |
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115 | jnz area_in_app_mem |
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116 | |||
117 | .error_output: |
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118 | mov esi, buffer_failed |
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119 | call sys_msg_board_str |
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120 | ; mov eax,7 |
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121 | mov dword [esp+36], 7 |
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122 | ret |
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123 | iglobal |
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124 | buffer_failed db 'K : Buffer check failed',13,10,0 |
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125 | endg |
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126 | .usual_check: |
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127 | cmp dword [eax+0], 0 |
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128 | mov ecx, 512 |
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129 | jnz .small_size |
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130 | mov ecx, [eax+8] |
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131 | shl ecx, 9 |
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132 | .small_size: |
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133 | mov ebx, [eax+12] |
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134 | ; add ebx,std_application_base_address |
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135 | call check_region |
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136 | test eax, eax |
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137 | jz .error_output |
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138 | area_in_app_mem: |
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139 | mov eax, edx |
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140 | no_checks_for_kernel: |
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141 | |||
142 | fs_read: |
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143 | |||
144 | mov ebx, [eax+20] ; program wants root directory ? |
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145 | test bl, bl |
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146 | je fs_getroot |
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147 | test bh, bh |
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148 | jne fs_noroot |
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149 | fs_getroot: |
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150 | ; \begin{diamond}[18.03.2006] |
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151 | ; root - only read is allowed |
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152 | ; other operations return "access denied", eax=10 |
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153 | ; (execute operation returns eax=-10) |
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154 | cmp dword [eax], 0 |
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155 | jz .read_root |
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156 | mov dword [esp+36], 10 |
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157 | ret |
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158 | .read_root: |
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159 | ; \end{diamond}[18.03.2006] |
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160 | mov esi, dir0 |
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161 | mov edi, [eax+12] |
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162 | ; add edi,std_application_base_address |
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163 | mov ecx, 11 |
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164 | push ecx |
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165 | ; cld ; already is |
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166 | rep movsb |
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167 | mov al, 0x10 |
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168 | stosb |
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169 | add edi, 32-11-1 |
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170 | pop ecx |
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171 | rep movsb |
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172 | stosb |
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173 | and dword [esp+36], 0; ok read |
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174 | mov dword [esp+24], 32*2; size of root |
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175 | ret |
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176 | |||
177 | fs_info: ;start of code - Mihasik |
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178 | push eax |
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179 | cmp [eax+21], byte 'r' |
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180 | je fs_info_r |
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181 | cmp [eax+21], byte 'R' |
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182 | je fs_info_r |
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183 | mov eax, 3 ;if unknown disk |
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184 | xor ebx, ebx |
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185 | xor ecx, ecx |
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186 | xor edx, edx |
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187 | jmp fs_info1 |
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188 | fs_info_r: |
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189 | call ramdisk_free_space;if ramdisk |
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190 | mov ecx, edi ;free space in ecx |
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191 | shr ecx, 9 ;free clusters |
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192 | mov ebx, 2847 ;total clusters |
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193 | mov edx, 512 ;cluster size |
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194 | xor eax, eax ;always 0 |
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195 | fs_info1: |
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196 | pop edi |
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197 | mov [esp+36], eax |
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198 | mov [esp+24], ebx ; total clusters on disk |
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199 | mov [esp+32], ecx ; free clusters on disk |
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200 | mov [edi], edx ; cluster size in bytes |
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201 | ret ;end of code - Mihasik |
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202 | |||
203 | fs_noroot: |
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204 | |||
205 | push dword [eax+0] ; read/write/delete/.../makedir/rename/lba/run |
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206 | push dword [eax+4] ; 512 block number to read |
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207 | push dword [eax+8] ; bytes to write/append or 512 blocks to read |
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208 | mov ebx, [eax+12] |
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209 | ; add ebx,std_application_base_address |
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210 | push ebx ; abs start of return/save area |
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211 | |||
212 | lea esi, [eax+20] ; abs start of dir + filename |
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213 | mov edi, [eax+16] |
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214 | ; add edi,std_application_base_address ; abs start of work area |
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215 | |||
216 | call expand_pathz |
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217 | |||
218 | push edi ; dir start |
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219 | push ebx ; name of file start |
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220 | |||
221 | mov eax, [edi+1] |
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222 | cmp eax, 'RD ' |
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223 | je fs_yesramdisk |
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224 | cmp eax, 'RAMD' |
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225 | jne fs_noramdisk |
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226 | |||
227 | fs_yesramdisk: |
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228 | |||
229 | cmp byte [edi+1+11], 0 |
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230 | je fs_give_dir1 |
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231 | |||
232 | mov eax, [edi+1+12] |
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233 | cmp eax, '1 ' |
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234 | je fs_yesramdisk_first |
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235 | cmp eax, 'FIRS' |
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236 | jne fs_noramdisk |
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237 | |||
238 | fs_yesramdisk_first: |
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239 | |||
240 | cmp dword [esp+20], 8; LBA read ramdisk |
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241 | jne fs_no_LBA_read_ramdisk |
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242 | |||
243 | mov eax, [esp+16] ; LBA block to read |
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244 | mov ecx, [esp+8] ; abs pointer to return area |
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245 | |||
246 | call LBA_read_ramdisk |
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247 | jmp file_system_return |
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248 | |||
249 | |||
250 | fs_no_LBA_read_ramdisk: |
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251 | |||
252 | cmp dword [esp+20], 0; READ |
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253 | jne fs_noramdisk_read |
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254 | |||
255 | mov eax, [esp+4] ; fname |
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256 | add eax, 2*12+1 |
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257 | mov ebx, [esp+16] ; block start |
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258 | inc ebx |
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259 | mov ecx, [esp+12] ; block count |
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260 | mov edx, [esp+8] ; return |
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261 | mov esi, [esp+0] |
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262 | sub esi, eax |
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263 | add esi, 12+1 ; file name length |
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264 | call fileread |
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265 | |||
266 | jmp file_system_return |
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267 | |||
268 | |||
269 | fs_noramdisk_read: |
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270 | fs_noramdisk: |
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271 | |||
272 | ;******************************************************************** |
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273 | mov eax, [edi+1] |
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274 | cmp eax, 'FD ' |
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275 | je fs_yesflpdisk |
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276 | cmp eax, 'FLOP' |
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277 | jne fs_noflpdisk |
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278 | |||
279 | fs_yesflpdisk: |
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280 | call reserve_flp |
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281 | |||
282 | cmp byte [edi+1+11], 0 |
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283 | je fs_give_dir1 |
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284 | |||
285 | mov eax, [edi+1+12] |
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286 | cmp eax, '1 ' |
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287 | je fs_yesflpdisk_first |
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288 | cmp eax, 'FIRS' |
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289 | je fs_yesflpdisk_first |
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290 | cmp eax, '2 ' |
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291 | je fs_yesflpdisk_second |
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292 | cmp eax, 'SECO' |
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293 | jne fs_noflpdisk |
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294 | jmp fs_yesflpdisk_second |
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295 | |||
296 | fs_yesflpdisk_first: |
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297 | mov [flp_number], 1 |
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298 | jmp fs_yesflpdisk_start |
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299 | fs_yesflpdisk_second: |
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300 | mov [flp_number], 2 |
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301 | fs_yesflpdisk_start: |
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302 | cmp dword [esp+20], 0; READ |
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303 | jne fs_noflpdisk_read |
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304 | |||
305 | mov eax, [esp+4] ; fname |
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306 | add eax, 2*12+1 |
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307 | mov ebx, [esp+16] ; block start |
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308 | inc ebx |
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309 | mov ecx, [esp+12] ; block count |
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310 | mov edx, [esp+8] ; return |
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311 | mov esi, [esp+0] |
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312 | sub esi, eax |
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313 | add esi, 12+1 ; file name length |
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314 | call floppy_fileread |
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315 | |||
316 | jmp file_system_return |
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317 | |||
318 | |||
319 | fs_noflpdisk_read: |
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320 | fs_noflpdisk: |
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321 | ;***************************************************************** |
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322 | |||
323 | old_path_harddisk: |
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324 | mov eax, [edi+1] |
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325 | cmp eax, 'HD ' |
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326 | je fs_yesharddisk |
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327 | cmp eax, 'HARD' |
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328 | jne fs_noharddisk |
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329 | |||
330 | fs_yesharddisk: |
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331 | cmp dword [esp+20], 8; LBA read |
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332 | jne fs_no_LBA_read |
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333 | mov eax, [esp+16] ; LBA block to read |
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334 | lea ebx, [edi+1+12] ; pointer to FIRST/SECOND/THIRD/FOURTH |
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335 | mov ecx, [esp+8] ; abs pointer to return area |
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336 | call LBA_read |
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337 | jmp file_system_return |
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338 | |||
339 | fs_no_LBA_read: |
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340 | |||
341 | hd_err_return: |
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342 | |||
343 | fs_noharddisk: |
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344 | ; \begin{diamond}[18.03.2006] |
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345 | mov eax, 5 ; file not found |
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3539 | clevermous | 346 | ; а может быть, возвращать другой код ошибки? |
2288 | clevermous | 347 | mov ebx, [esp+24+24]; do not change ebx in application |
348 | ; \end{diamond}[18.03.2006] |
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349 | |||
350 | file_system_return: |
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351 | |||
352 | add esp, 24 |
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353 | |||
354 | mov [esp+36], eax |
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355 | mov [esp+24], ebx |
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356 | ret |
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357 | |||
358 | |||
359 | fs_give_dir1: |
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360 | |||
361 | ; \begin{diamond}[18.03.2006] |
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362 | ; /RD,/FD,/HD - only read is allowed |
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363 | ; other operations return "access denied", eax=10 |
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364 | ; (execute operation returns eax=-10) |
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365 | cmp dword [esp+20], 0 |
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366 | jz .read |
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367 | add esp, 20 |
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368 | pop ecx |
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369 | mov dword [esp+36], 10 |
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370 | ret |
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371 | .read: |
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372 | ; \end{diamond}[18.03.2006] |
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373 | mov al, 0x10 |
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374 | mov ebx, 1 |
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375 | mov edi, [esp+8] |
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376 | mov esi, dir1 |
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377 | fs_d1_new: |
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378 | mov ecx, 11 |
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379 | ; cld |
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380 | rep movsb |
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381 | stosb |
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382 | add edi, 32-11-1 |
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383 | dec ebx |
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384 | jne fs_d1_new |
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385 | |||
386 | add esp, 24 |
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387 | |||
388 | and dword [esp+36], 0; ok read |
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389 | mov dword [esp+24], 32*1; dir/data size |
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390 | ret |
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391 | |||
392 | |||
393 | |||
394 | LBA_read_ramdisk: |
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395 | |||
396 | cmp [lba_read_enabled], 1 |
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397 | je lbarrl1 |
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398 | |||
399 | xor ebx, ebx |
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400 | mov eax, 2 |
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401 | ret |
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402 | |||
403 | lbarrl1: |
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404 | |||
405 | cmp eax, 18*2*80 |
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406 | jb lbarrl2 |
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407 | xor ebx, ebx |
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408 | mov eax, 3 |
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409 | ret |
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410 | |||
411 | lbarrl2: |
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412 | |||
413 | pushad |
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414 | |||
415 | call restorefatchain |
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416 | |||
417 | mov edi, ecx |
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418 | mov esi, eax |
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419 | |||
420 | shl esi, 9 |
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421 | add esi, RAMDISK |
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422 | mov ecx, 512/4 |
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423 | ; cld |
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424 | rep movsd |
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425 | |||
426 | popad |
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427 | |||
428 | xor ebx, ebx |
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429 | xor eax, eax |
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430 | ret |
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431 | |||
432 | LBA_read: |
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433 | |||
434 | ; IN: |
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435 | ; |
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436 | ; eax = LBA block to read |
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437 | ; ebx = pointer to FIRST/SECOND/THIRD/FOURTH |
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438 | ; ecx = abs pointer to return area |
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439 | |||
440 | cmp [lba_read_enabled], 1 |
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441 | je lbarl1 |
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442 | mov eax, 2 |
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443 | ret |
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444 | |||
445 | lbarl1: |
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446 | |||
3742 | clevermous | 447 | pushad |
448 | mov ecx, ide_mutex |
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449 | call mutex_lock |
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450 | popad |
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2288 | clevermous | 451 | |
452 | push eax |
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453 | push ecx |
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454 | |||
455 | mov edi, hd_address_table |
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456 | mov esi, dir1 |
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457 | mov eax, [ebx] |
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458 | mov edx, '1 ' |
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459 | mov ecx, 4 |
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460 | blar0: |
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461 | cmp eax, [esi] |
||
462 | je blar2 |
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463 | cmp eax, edx |
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464 | je blar2 |
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465 | inc edx |
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466 | add edi, 8 |
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467 | add esi, 11 |
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468 | dec ecx |
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469 | jnz blar0 |
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470 | |||
471 | mov eax, 1 |
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472 | mov ebx, 1 |
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473 | jmp LBA_read_ret |
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474 | |||
475 | blar2: |
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476 | mov eax, [edi+0] |
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477 | mov ebx, [edi+4] |
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478 | |||
479 | mov [hdbase], eax |
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480 | mov [hdid], ebx |
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481 | |||
482 | call wait_for_hd_idle |
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483 | cmp [hd_error], 0 |
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484 | jne hd_lba_error |
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485 | |||
486 | ; eax = hd port |
||
487 | ; ebx = set for primary (0x00) or slave (0x10) |
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488 | |||
489 | cli |
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490 | |||
491 | mov edx, eax |
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492 | inc edx |
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493 | xor eax, eax |
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494 | out dx, al |
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495 | inc edx |
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496 | inc eax |
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497 | out dx, al |
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498 | inc edx |
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499 | mov eax, [esp+4] |
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500 | out dx, al |
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501 | shr eax, 8 |
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502 | inc edx |
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503 | out dx, al |
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504 | shr eax, 8 |
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505 | inc edx |
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506 | out dx, al |
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507 | shr eax, 8 |
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508 | inc edx |
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509 | and al, 1+2+4+8 |
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510 | add al, bl |
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511 | add al, 128+64+32 |
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512 | out dx, al |
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513 | |||
514 | inc edx |
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515 | mov al, 20h |
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516 | out dx, al |
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517 | |||
518 | sti |
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519 | |||
520 | call wait_for_sector_buffer |
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521 | cmp [hd_error], 0 |
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522 | jne hd_lba_error |
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523 | |||
524 | cli |
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525 | |||
526 | mov edi, [esp+0] |
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527 | mov ecx, 256 |
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528 | sub edx, 7 |
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529 | cld |
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530 | rep insw |
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531 | |||
532 | sti |
||
533 | |||
534 | xor eax, eax |
||
535 | xor ebx, ebx |
||
536 | |||
537 | LBA_read_ret: |
||
538 | mov [hd_error], 0 |
||
539 | mov [hd1_status], 0 |
||
540 | add esp, 2*4 |
||
3742 | clevermous | 541 | pushad |
542 | mov ecx, ide_mutex |
||
543 | call mutex_unlock |
||
544 | popad |
||
2288 | clevermous | 545 | |
546 | ret |
||
547 | |||
548 | |||
549 | expand_pathz: |
||
550 | ; IN: |
||
551 | ; esi = asciiz path & file |
||
552 | ; edi = buffer for path & file name |
||
553 | ; OUT: |
||
554 | ; edi = directory & file : / 11 + / 11 + / 11 - zero terminated |
||
555 | ; ebx = /file name - zero terminated |
||
556 | ; esi = pointer after source |
||
557 | |||
558 | push eax |
||
559 | push ecx |
||
560 | push edi;[esp+0] |
||
561 | |||
562 | pathz_start: |
||
563 | mov byte [edi], '/' |
||
564 | inc edi |
||
565 | mov al, 32 |
||
566 | mov ecx, 11 |
||
567 | cld |
||
568 | rep stosb ; clear filename area |
||
569 | sub edi, 11 |
||
570 | mov ebx, edi ; start of dir/file name |
||
571 | |||
572 | pathz_new_char: |
||
573 | mov al, [esi] |
||
574 | inc esi |
||
575 | cmp al, 0 |
||
576 | je pathz_end |
||
577 | |||
578 | cmp al, '/' |
||
579 | jne pathz_not_path |
||
580 | cmp edi, ebx ; skip first '/' |
||
581 | jz pathz_new_char |
||
582 | lea edi, [ebx+11] ; start of next directory |
||
583 | jmp pathz_start |
||
584 | |||
585 | pathz_not_path: |
||
586 | cmp al, '.' |
||
587 | jne pathz_not_ext |
||
588 | lea edi, [ebx+8] ; start of extension |
||
589 | jmp pathz_new_char |
||
590 | |||
591 | pathz_not_ext: |
||
592 | cmp al, 'a' |
||
593 | jb pathz_not_low |
||
594 | cmp al, 'z' |
||
595 | ja pathz_not_low |
||
596 | sub al, 0x20 ; char to uppercase |
||
597 | |||
598 | pathz_not_low: |
||
599 | mov [edi], al |
||
600 | inc edi |
||
601 | mov eax, [esp+0] ; start_of_dest_path |
||
602 | add eax, 512 ; keep maximum path under 512 bytes |
||
603 | cmp edi, eax |
||
604 | jb pathz_new_char |
||
605 | |||
606 | pathz_end: |
||
607 | cmp ebx, edi ; if path end with '/' |
||
608 | jnz pathz_put_zero ; go back 1 level |
||
609 | sub ebx, 12 |
||
610 | |||
611 | pathz_put_zero: |
||
612 | mov byte [ebx+11], 0 |
||
613 | dec ebx ; include '/' char into file name |
||
614 | pop edi |
||
615 | pop ecx |
||
616 | pop eax |
||
617 | ret |
||
618 | |||
619 | ;******************************************* |
||
620 | ;* string to number |
||
621 | ;* input eax - 4 byte string |
||
622 | ;* output eax - number |
||
623 | ;******************************************* |
||
624 | StringToNumber: |
||
3539 | clevermous | 625 | ; ПЕРЕВОД СТРОКОВОГО ЧИСЛА В ЧИСЛОВОЙ ВИД |
626 | ; Вход: |
||
627 | ; EDI - адрес строки с числом. Конец числа отмечен кодом 0Dh |
||
628 | ; Выход: |
||
629 | ; CF - индикатор ошибок: |
||
630 | ; 0 - ошибок нет; |
||
631 | ; 1 - ошибка |
||
632 | ; Если CF=0, то AX - число. |
||
2288 | clevermous | 633 | |
634 | push bx |
||
635 | push cx |
||
636 | push dx |
||
637 | push edi |
||
638 | mov [partition_string], eax |
||
639 | mov edi, partition_string |
||
640 | xor cx, cx |
||
641 | i1: |
||
642 | mov al, [edi] |
||
643 | cmp al, 32;13 |
||
644 | je i_exit |
||
645 | ; cmp al,'0' |
||
646 | ; jb err |
||
647 | ; cmp al,'9' |
||
648 | ; ja err |
||
649 | sub al, 48 |
||
650 | shl cx, 1 |
||
651 | jc error |
||
652 | mov bx, cx |
||
653 | shl cx, 1 |
||
654 | jc error |
||
655 | shl cx, 1 |
||
656 | jc error |
||
657 | add cx, bx |
||
658 | jc error |
||
659 | cbw |
||
660 | add cx, ax |
||
661 | jc error |
||
662 | i3: |
||
663 | inc edi |
||
664 | jmp i1 |
||
665 | i_exit: |
||
666 | mov ax, cx |
||
667 | clc |
||
668 | i4: |
||
669 | movzx eax, ax |
||
670 | pop edi |
||
671 | pop dx |
||
672 | pop cx |
||
673 | pop bx |
||
674 | ret |
||
675 | |||
676 | error: |
||
677 | stc |
||
678 | jmp i4 |
||
679 | |||
680 | partition_string: |
||
681 | dd 0 |
||
682 | db 32>=>>=> |